third_party_spirv-tools/external/CMakeLists.txt
Paul Thomson a715b1b405
Improve spirv-fuzz CMake code (#3781)
This change improves spirv-fuzz CMake code to be more compatible with other projects that might want to include spirv-fuzz as a sub-project.

* Add a CMake option for building spirv-fuzz. 
* We now check if protobuf targets are already available. 
* We no longer specify `-DGOOGLE_PROTOBUF_NO_RTTI -DGOOGLE_PROTOBUF_USE_UNALIGNED=0`; a newer version of protobuf does not require this. Note that we probably should have specified this for protobuf targets as well, but this is no longer needed. 
* Updated protobuf version in Kokoro scripts and README.md.
2020-09-09 09:56:32 +01:00

180 lines
6.2 KiB
CMake

# Copyright (c) 2015-2016 The Khronos Group Inc.
#
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Utility functions for pushing & popping variables.
function(push_variable var val)
set("${var}_SAVE_STACK" "${${var}}" "${${var}_SAVE_STACK}" PARENT_SCOPE)
set(${var} ${val} PARENT_SCOPE)
endfunction()
function(pop_variable var)
set(save_stack "${${var}_SAVE_STACK}")
list(GET save_stack 0 val)
list(REMOVE_AT save_stack 0)
set("${var}_SAVE_STACK" "${save_stack}" PARENT_SCOPE)
set(${var} ${val} PARENT_SCOPE)
endfunction()
if (DEFINED SPIRV-Headers_SOURCE_DIR)
# This allows flexible position of the SPIRV-Headers repo.
set(SPIRV_HEADER_DIR ${SPIRV-Headers_SOURCE_DIR})
else()
if (IS_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/SPIRV-Headers)
set(SPIRV_HEADER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/SPIRV-Headers)
else()
set(SPIRV_HEADER_DIR ${CMAKE_CURRENT_SOURCE_DIR}/spirv-headers)
endif()
endif()
if (IS_DIRECTORY ${SPIRV_HEADER_DIR})
# TODO(dneto): We should not be modifying the parent scope.
set(SPIRV_HEADER_INCLUDE_DIR ${SPIRV_HEADER_DIR}/include PARENT_SCOPE)
# Add SPIRV-Headers as a sub-project if it isn't already defined.
# Do this so enclosing projects can use SPIRV-Headers_SOURCE_DIR to find
# headers to include.
if (NOT DEFINED SPIRV-Headers_SOURCE_DIR)
set(SPIRV_HEADERS_SKIP_INSTALL ON)
set(SPIRV_HEADERS_SKIP_EXAMPLES ON)
add_subdirectory(${SPIRV_HEADER_DIR})
endif()
else()
message(FATAL_ERROR
"SPIRV-Headers was not found - please checkout a copy under external/.")
endif()
if (NOT ${SPIRV_SKIP_TESTS})
# Find gmock if we can. If it's not already configured, then try finding
# it in external/googletest.
if (TARGET gmock)
message(STATUS "Google Mock already configured")
else()
set(GMOCK_DIR ${CMAKE_CURRENT_SOURCE_DIR}/googletest)
if(EXISTS ${GMOCK_DIR})
if(MSVC)
# Our tests use ::testing::Combine. Work around a compiler
# detection problem in googletest, where that template is
# accidentally disabled for VS 2017.
# See https://github.com/google/googletest/issues/1352
add_definitions(-DGTEST_HAS_COMBINE=1)
endif()
if(WIN32)
option(gtest_force_shared_crt
"Use shared (DLL) run-time lib even when Google Test is built as static lib."
ON)
endif()
# gtest requires special defines for building as a shared
# library, simply always build as static.
push_variable(BUILD_SHARED_LIBS 0)
add_subdirectory(${GMOCK_DIR} EXCLUDE_FROM_ALL)
pop_variable(BUILD_SHARED_LIBS)
endif()
endif()
if (TARGET gmock)
set(GTEST_TARGETS
gtest
gtest_main
gmock
gmock_main
)
foreach(target ${GTEST_TARGETS})
set_property(TARGET ${target} PROPERTY FOLDER GoogleTest)
endforeach()
endif()
# Find Effcee and RE2, for testing.
# First find RE2, since Effcee depends on it.
# If already configured, then use that. Otherwise, prefer to find it under 're2'
# in this directory.
if (NOT TARGET re2)
# If we are configuring RE2, then turn off its testing. It takes a long time and
# does not add much value for us. If an enclosing project configured RE2, then it
# has already chosen whether to enable RE2 testing.
set(RE2_BUILD_TESTING OFF CACHE STRING "Run RE2 Tests")
if (NOT RE2_SOURCE_DIR)
if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/re2)
set(RE2_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/re2" CACHE STRING "RE2 source dir" )
endif()
endif()
endif()
if (NOT TARGET effcee)
# Expect to find effcee in this directory.
if (EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/effcee)
# If we're configuring RE2 (via Effcee), then turn off RE2 testing.
if (NOT TARGET re2)
set(RE2_BUILD_TESTING OFF)
endif()
if (MSVC)
# SPIRV-Tools uses the shared CRT with MSVC. Tell Effcee to do the same.
set(EFFCEE_ENABLE_SHARED_CRT ON)
endif()
set(EFFCEE_BUILD_SAMPLES OFF CACHE BOOL "Do not build Effcee examples")
if (NOT TARGET effcee)
set(EFFCEE_BUILD_TESTING OFF CACHE BOOL "Do not build Effcee test suite")
endif()
push_variable(BUILD_SHARED_LIBS 0) # effcee does not export any symbols for building as a DLL. Always build as static.
add_subdirectory(effcee EXCLUDE_FROM_ALL)
pop_variable(BUILD_SHARED_LIBS)
set_property(TARGET effcee PROPERTY FOLDER Effcee)
# Turn off warnings for effcee and re2
set_property(TARGET effcee APPEND PROPERTY COMPILE_OPTIONS -w)
set_property(TARGET re2 APPEND PROPERTY COMPILE_OPTIONS -w)
endif()
endif()
endif()
if(SPIRV_BUILD_FUZZER)
function(backup_compile_options)
get_property(
SPIRV_TOOLS_BACKUP_EXTERNAL_COMPILE_OPTIONS
DIRECTORY
PROPERTY COMPILE_OPTIONS
)
endfunction()
function(restore_compile_options)
set_property(
DIRECTORY
PROPERTY COMPILE_OPTIONS
${SPIRV_TOOLS_BACKUP_EXTERNAL_COMPILE_OPTIONS}
)
endfunction()
if(NOT TARGET protobuf::libprotobuf OR NOT TARGET protobuf::protoc)
set(SPIRV_TOOLS_PROTOBUF_DIR ${CMAKE_CURRENT_SOURCE_DIR}/protobuf/cmake)
if (NOT IS_DIRECTORY ${SPIRV_TOOLS_PROTOBUF_DIR})
message(
FATAL_ERROR
"protobuf not found - please checkout a copy under external/.")
endif()
set(protobuf_BUILD_TESTS OFF CACHE BOOL "Disable protobuf tests")
set(protobuf_MSVC_STATIC_RUNTIME OFF CACHE BOOL "Do not build protobuf static runtime")
backup_compile_options()
if (${CMAKE_CXX_COMPILER_ID} MATCHES Clang)
add_compile_options(-Wno-inconsistent-missing-override)
endif()
add_subdirectory(${SPIRV_TOOLS_PROTOBUF_DIR} EXCLUDE_FROM_ALL)
restore_compile_options()
endif()
endif()